UBS Ethereum Compliance Tests

1. UBS and Nethermind have successfully completed two joint proofs of concept, demonstrating that the public Ethereum network can support the operational and compliance requirements of regulated financial institutions [1]. This development is significant as it represents an important step toward making Ethereum infrastructure more accessible to heavily regulated financial organizations, with UBS managing approximately $6.9 trillion in invested assets as of the first quarter of 2026 [2].

What drove the move

The collaboration between UBS and Nethermind shows how banks can introduce strong compliance controls through systems layered on top of Ethereum, without changing the core public protocol [2]. The approach avoids any changes to the core public protocol, preserving the network’s openness, neutrality, and broad compatibility with the wider ecosystem. The two experiments focused on key moments when transactions are prepared and included on the blockchain, with the first proof of concept configuring an Ethereum node to enforce customizable compliance and risk rules [1].

The second proof of concept developed a routing component that directs bundles of approved transactions through specialized relay services directly to selected block builders, ensuring reliable and consistent inclusion of compliant transactions on the chain [2]. Both tests ran successfully on Ethereum’s Sepolia test network in a controlled environment, with no live mainnet transactions or real assets involved [1]. The results confirmed that only approved activity was processed and permanently recorded, demonstrating that a regulated bank can maintain full oversight of its own infrastructure layers [2].

The competitive picture

The work by UBS and Nethermind is part of a growing effort to address the regulatory challenges faced by financial institutions operating on public, permissionless blockchains [3]. The Basel Committee on Banking Supervision currently treats all tokenized securities on permissionless blockchains equivalently to cryptocurrencies, attracting punitive capital requirements [3]. However, this position is under review, and the collaboration between UBS and Nethermind demonstrates that institutional-grade controls and public-network interoperability can be achieved without compromising Ethereum’s openness or neutrality [1].

What to watch

• The development of further compliance solutions for public, permissionless blockchains
• The review of the Basel Committee on Banking Supervision's position on tokenized securities
• The potential expansion of Ethereum-based activities by regulated financial institutions

The successful completion of the proofs of concept by UBS and Nethermind represents a significant step forward in bridging the gap between public networks and institutional-grade infrastructure [1]. As the technology and regulatory environment continue to evolve, it will be important to monitor the development of further compliance solutions and the potential expansion of Ethereum-based activities by regulated financial institutions.